<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<title>css选择器</title>
	<link rel="stylesheet" type="text/css" href="css/index.css">
</head>
<body>
	<div>
		<h3 class="active title">抖音</h3>
		<p>开始
			<span class="active">火</span>起来了，
			<span>主播一大把</span></p>
		<img src="images/1.png">
		<p>什么
			<span id="sb">傻逼</span>都有</p>
		<img src="images/2.png">
	</div>

</body>
</html>